US3449264A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Isomerization catalysts and their use
Assignee: Phillips Petroleum Co
•
Filing: 1961-11-27
•
Granted: 1969-06-10
•
Expires: 1981-11-27
Abstract
No abstract record available.
Inventors
- 👤 John W Myers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:59
CPC Classifications
B; B01; B01J; B01J21/00; B01J21/02; B01J21/04; B01J27/00; B01J27/06; B01J27/128; B01J27/13
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
88 words
A PROCESS FOR ACTIVATING A CATALYST WHICH COMPRISES HEATING ACTIVE ALUMINA, SUBSTANTIALLY FREE OF PLATINUM AND OTHER METALS, AT A TEMPERATURE IN THE RANGE OF 400 TO 15000*F. IN A DRY AMBIENT FOR A PERIOD IN THE RANGE OF 0.5 TO 100 HOURS, AT LEAST 0.5 HOUR BEING IN THE RANGE OF 900 TO 1500*F. IN AN AMBIENT INCLUDING A SUBSTANTIAL AND ACTIVATING CONCENTRATION OF AT LEAST ONE GAS SELECTED FROM THE GROUP CONSISTING OF ANHYDROUS HC1, CI2, HBR, BR2, AND THE C AND BR DERIVATIVES OF METHANE.
Claim 2
Dependent Claim
88 words
A PROCESS FOR ACTIVATING A CATALYST WHICH COMPRISES HEATING ACTIVE ALUMINA, SUBSTANTIALLY FREE OF PLATINUM AND OTHER METALS, AT A TEMPERATURE IN THE RANGE OF 400 TO 15000*F. IN A DRY AMBIENT FOR A PERIOD IN THE RANGE OF 0.5 TO 100 HOURS, AT LEAST 0.5 HOUR BEING IN THE RANGE OF 900 TO 1500*F. IN AN AMBIENT INCLUDING A SUBSTANTIAL AND ACTIVATING CONCENTRATION OF AT LEAST ONE GAS SELECTED FROM THE GROUP CONSISTING OF ANHYDROUS HC1, CI2, HBR, BR2, AND THE C AND BR DERIVATIVES OF METHANE.
Claim 3
Dependent Claim
101 words
A PROCESS FOR ACTIVATING A CATALYST COMPRISING PRINCIPALLY ACTIVE ALUMINA HAVING DEPOSITED THEREIN A MINOR BUT EFFECTIVE AMOUNT OF PLATINUM METAL WHICH COMPRISES (A) HEATING SAID CATALYST IN A DRY AMBIENT FOR A PERIOD IN THE RANGE OF 0.5 TO 100 HOURS AT A TEMPERATURE IN THE RANGE OF 900 TO 1500*F. AND (B) CONTACTING SAID CATALYST WITH AT LEAST ONE MEMBER OF THE GROUP CONSISTING OF ANHYDROUS HC1, CI2, HBR, AND BR2, AND THE C1 AND BR DERIVATIVES OF METHANE AS THE ESSENTAIL ACTIVATING GAS AT A TEMPERATURE IN THE RANGE OF 900* TO 1500*F. FOR AT LEAST 0.5 HOUR.
Claim 4
Dependent Claim
101 words
A PROCESS FOR ACTIVATING A CATALYST COMPRISING PRINCIPALLY ACTIVE ALUMINA HAVING DEPOSITED THEREIN A MINOR BUT EFFECTIVE AMOUNT OF PLATINUM METAL WHICH COMPRISES (A) HEATING SAID CATALYST IN A DRY AMBIENT FOR A PERIOD IN THE RANGE OF 0.5 TO 100 HOURS AT A TEMPERATURE IN THE RANGE OF 900 TO 1500*F. AND (B) CONTACTING SAID CATALYST WITH AT LEAST ONE MEMBER OF THE GROUP CONSISTING OF ANHYDROUS HC1, CI2, HBR, AND BR2, AND THE C1 AND BR DERIVATIVES OF METHANE AS THE ESSENTAIL ACTIVATING GAS AT A TEMPERATURE IN THE RANGE OF 900* TO 1500*F. FOR AT LEAST 0.5 HOUR.
References Cited (Backward Citations)
US2880168A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-09 | 1972-12-09 | 1973-06-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-09 | 1976-12-09 | 1977-06-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-09 | 1980-12-09 | 1981-06-10 | $7700.00 | Window Closed / Lapsed |